http://en.wikipedia.org/wiki/Johannes_Diderik_van_der_Waals
http://www.infoplease.com/ce6/people/A0850432.html
_ Van Der Waals Forces
http://www.youtube.com/watch?v=8qfzpJvsp04
_ Visualizing Van der Waals forces
http://www.youtube.com/watch?v=G1jGeeSWhXY